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All results from a given calculation for CHOOCHO (diformyl ether)

using model chemistry: MP4=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-302.367446
Energy at 298.15K 
HF Energy-301.499860
Nuclear repulsion energy158.024393
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP4=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3027 2921        
2 A1 1865 1800        
3 A1 1431 1381        
4 A1 1141 1102        
5 A1 530 511        
6 A1 281 271        
7 A2 1012 977        
8 A2 186 180        
9 B1 1015 980        
10 B1 124 120        
11 B2 3004 2899        
12 B2 1788 1726        
13 B2 1385 1337        
14 B2 1061 1024        
15 B2 696 672        

Unscaled Zero Point Vibrational Energy (zpe) 9273.1 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 8949.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/cc-pVDZ
ABC
1.59337 0.08505 0.08074

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.413
C2 0.000 1.178 -0.320
C3 0.000 -1.178 -0.320
O4 0.000 2.256 0.211
O5 0.000 -2.256 0.211
H6 0.000 1.002 -1.421
H7 0.000 -1.002 -1.421

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38761.38762.26542.26542.08982.0898
C21.38762.35631.20213.47541.11532.4421
C31.38762.35633.47541.20212.44211.1153
O42.26541.20213.47544.51282.05923.6442
O52.26543.47541.20214.51283.64422.0592
H62.08981.11532.44212.05923.64422.0032
H72.08982.44211.11533.64422.05922.0032

picture of diformyl ether state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 121.871 O1 C2 H6 112.777
O1 C3 O5 121.871 C2 O1 C3 116.226
O4 C2 H6 125.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability